When two bodies
with curved surfaces are in contact under a force, point or line
contact between these bodies changes to area contact, and 3 dimensional stresses are developed
These stresses are contact stresses. A knowledge of contact stresses is
important in calculating strength of bearings, gear and worm drives, ball
and cylindrical rollers, and cam mechanisms. Typical failures are seen as cracks, pits, or
flaking in the surface material.
The
contact stress calculator has been designed to calculate contact pressure and contact
stress for spherical and cylindrical contact. Maximum shear stresses are
drawn with respect to the depth from contact surface for Object-1 and Object-2.
The formulas used for the calculations are given in the "List of Equations"
section.
Contact
configurations which can be calculated by "Hertzian contact stress calculator" are shown
below.
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RESULTS
Parameter
Obj-1
Obj-2
Unit
Maximum Hertzian contact pressure [p_{max} ]
---
MPa
psi
Max shear stress [τ_{max} ]
---
---
Depth of max shear stress [z]
---
---
mm
inch
Circular contact area diameter
[2a
]
---
Note: Use dot "." as decimal separator.
Object-1
Object-2